DE602006000616T2 - Device and method for mounting a windshield wiper mechanism on a vehicle body part, and motor vehicle with such a device - Google Patents

Abstract

The device has three fastening unit pairs (21-23) in which the pair (21) comprises a pilot point (31) that projects from a transversal bar (9) to an end of the bar. The pair (22) comprises a pilot point (41) that is arranged at another end of the bar. The pairs (21, 22) are assembled by axial engagement of the pilot points (31, 41) in pads (32, 42) of the respective pairs (21, 22) successively, along two opposed directions. An independent claim is also included for a method for mounting a windscreen wiper mechanism on a body shell of a motor vehicle.

Description

The The invention relates to a positioning and fastening device a windshield wiper mechanism on a body part of a Motor vehicle having at least three pairs of fasteners, each having a fastener fixed to the Windscreen wiper mechanism is connected, and a second fastener, which is firmly connected to the body part, in which the first and the second pair form coaxial pivotal connections corresponding to Mechanism a freedom of rotation along a same axis offer, and in which the third pair connect with elastic Engaging by turning about the axis forms.

According to the state The technique is known windshield wiper mechanisms by means of a such fastening device are installed. Certain of these Fasteners work by, for example, inserting and Engaging two ends of a mechanism axis in two successive following camps, each forming a pair of pliers, which are firmly attached to the Vehicle body is connected.

An apparatus according to the preamble of claim 1 is in the document US 2003/042750 A1 described.

These known fastening devices have in particular the disadvantage that they are precise Position the mechanism at the two first attachment points to make the third point difficult to fix.

The The invention has the objective to remedy this disadvantage and has to a device of the above type for the task, in which the first and the second pair are designed to be axial Engaging the first fastener in the second subsequent one Fastener and to be joined together in two opposite directions.

• – weist das erste Befestigungselement der zwei einen Schwenker bildenden Paare einen teilweise zylindrischen Zapfen auf, der mit dem Scheibenwischermechanismus an einem freien Ende eines Arms dieses Letzteren fest verbunden ist, während das zweite Befestigungselement dieser zwei Paare eine komplementäre Öffnung des jeweiligen Zapfens aufweist, die in einer jeweiligen Befestigungsplatte eingerichtet ist, die mit dem Fahrzeugkarosserieteil fest verbunden und derart ausgebildet ist, dass sie das Einfügen oder das Herausnehmen des Zapfens radial verhindert;
• – weist der Zapfen eines ersten der zwei Paare, die den Schwenker bilden, einen freien zylindrischen Endabschnitt auf, der sich knapp in die entsprechende Öffnung einfügen kann, und einen Zwischenabschnitt mit kleinerem Querschnitt, derart, dass ein winkeliges Ausschlagen des Zapfens in Bezug auf seine Achse gestattet ist, wenn der Zwischenabschnitt in die entsprechende Öffnung eingefügt ist;
• – weist der Zapfen des zweiten der zwei Paare, die den Schwenker bilden, elastische Einrastmittel auf, die axial funktionieren, die Stoppmittel bilden, die sich dem Herausnehmen des Zapfens aus der entsprechenden Öffnung widersetzen;
• – sind die Zapfen derart, dass, wenn der Zapfen des zweiten Paars in der von den Stoppmitteln definierten Anschlagposition ist, der Zapfen des ersten Paars in die entsprechende Öffnung über seinen Zwischenabschnitt eingefügt ist;
• – weist das zweite Befestigungselement des Paars, das die Verbindung durch Einrasten bildet, einen Klotz in Spitzkegelform auf, der mit einem Ansatz versehen ist und von dem Karosserieteil nach außen vorsteht; und
• – weist das erste Befestigungselement des Paars, das die Verbindung durch Einrasten bildet, eine Aufnahme aus Elastomermaterial auf, die fest mit dem Mechanismus verbunden ist, die eine komplementäre Aufnahme des Klotzes und einen verformbaren Hals hat, der vorgesehen ist, um mit dem Ansatz derart zusammenzuwirken, dass der Klotz in der Aufnahme blockiert wird.

In accordance with optional features of the invention, taken alone or in all combinations technically contemplated:

• The first fastening element of the two pairs forming a swivel has a partially cylindrical pin which is fixedly connected to the windscreen wiper mechanism at a free end of one arm of the latter, while the second fastening element of these two pairs has a complementary opening of the respective stud shown in FIG a respective mounting plate is fixedly connected to the vehicle body part and formed so as to prevent the insertion or removal of the pin radially;
• The spigot of a first of the two pairs forming the swivel has a free cylindrical end portion which can fit snugly in the corresponding aperture and an intermediate portion of smaller cross section such that an angular deflection of the spigot relative to its Axis is allowed when the intermediate portion is inserted in the corresponding opening;
• The pin of the second of the two pairs forming the swivel has elastic latching means which operate axially, forming stop means which resist the removal of the pin from the corresponding opening;
• The pins are such that, when the pin of the second pair is in the stop position defined by the stop means, the pin of the first pair is inserted in the corresponding hole via its intermediate portion;
• The second fastening element of the pair, which forms the connection by snap-fastening, has a pointed-cone block which is provided with a projection and projects outwardly from the body part; and
• The first fastening element of the pair forming the connection by snap-fastening comprises an elastomeric material receptacle rigidly connected to the mechanism having a complementary reception of the pad and a deformable neck provided to engage with the projection in such a way cooperate to block the block in the receptacle.

The The invention also aims at a method of assembling a windscreen wiper mechanism on a vehicle body part, the mechanism and the Body part with a positioning and fastening device provided as described above.

• – Zusammenfügen des ersten den Schwenker bildenden Paars,
• – Zusammenfügen des zweiten den Schwenker bildenden Paars; und
• – Zusammenfügen des Paars, das durch Einrasten eine Verbindung bildet, indem man den Mechanismus um die von den Schwenkern definierte Rotationsachse schwenken lässt.

According to the method of the invention, the successive steps are carried out:

• Assembling the first pair forming the swivel,
• - assembling the second pair forming the swivel; and
• - Assembling the pair, which forms a connection by snapping, by allowing the mechanism to pivot about the rotation axis defined by the swivel.

• – man fügt den Zapfen des ersten Paars in die entsprechende Öffnung ein und setzt dann das axiale Einfügen fort, bis der Abschnitt mit kleinerem Querschnitt in die Öffnung eingesetzt ist;
• – man ordnet den Zapfen des zweiten Paars gegenüber der entsprechenden Öffnung an und man fügt ihn dort axial bis zum Einrasten der Einrastmittel derart ein, dass der Zapfen des ersten Paars knapp mit der entsprechenden Öffnung auf der Ebene des Endabschnitts zusammenwirkt.

Preferably, one proceeds to assemble the pairs forming the swivel as follows:

• - Insert the pin of the first pair in the corresponding opening and then continues the axial insertion, until the portion of smaller cross-section is inserted into the opening;
• - It arranges the pin of the second pair opposite the corresponding opening and it inserts there axially until the engagement of the latching means such that the pin of the first pair cooperates closely with the corresponding opening on the plane of the end portion.

The Invention finally aims to a motor vehicle, which with a positioning and fastening device a windshield wiper mechanism on a body part as above is equipped described.

A special embodiment The invention will be described below with reference to the accompanying drawings described on which:

1 Figure 3 is a perspective view of a windshield wiper mechanism and device of the invention in an assembled configuration;

2 a schematic sectional view in the vertical middle plane 2-2 of the first pair of fasteners of the device of 1 in assembled configuration;

3 an analogous view in the plane 3-3 of the second pair of fasteners;

4 Figure 4 is an analogous view in the plane 4-4 of the third pair of fasteners;

5 an analogous view too 1 in a configuration corresponding to a first intermediate mounting step of the windshield wiper mechanism to the vehicle body;

6 and 7 analogous views each to the 2 and 3 , in the configuration of 5 are;

8th an analogous view to the 1 and 5 in a configuration corresponding to a second intermediate mounting step of the mechanism;

the 9 and 10 Larger scale perspective views are of a clamp provided to lock the locking of the third pair of fasteners, each in pre-assembled and tensioned configuration; and

the 11 and 12 schematic sectional views in the central vertical plane 11-11 of the third pair of fasteners in the assembled configuration of 1 with the clamp each in pre-assembled configuration and tensioned configuration that blocks attachment.

On 1 became a windshield wiper mechanism 1 shown for motor vehicle, and three rigid beams 2 . 3 . 4 for fixing, which are fixedly connected to a part of the vehicle body (not shown). These carriers are made of sheet metal, for example, and welded to the body.

• – eine zentrale Tragplatte 5,
• – einen Antriebsmotor 7, der auf die Platte 5 montiert ist,
• – eine Querstange (oder Querarm) 9, die sich zu beiden Seiten der Platte 5 erstreckt,
• – zwei Wellen 11, die jeweils um ein Ende der Stange 9 drehend montiert und dazu bestimmt sind, jeweils einen Scheibenwischer in Drehung anzutreiben, und
• – ein Gestänge 13, das vorgesehen ist, um die Antriebsbewegung des Motors 7 auf jede der Wellen 11 zu übertragen.

The mechanism 1 essentially has the following:

• - a central support plate 5 .
• - a drive motor 7 that on the plate 5 is mounted,
• - a crossbar (or cross arm) 9 that are on both sides of the plate 5 extends
• - two waves 11 , each one end of the pole 9 rotatably mounted and intended to each drive a windshield wiper in rotation, and
• - a linkage 13 , which is intended to drive the motor 7 on each of the waves 11 transferred to.

For convenience of the following description will be the mechanism 1 in a code number X, Y, Z, which is connected to the vehicle on which the mechanism is mounted. In this index, the axis X represents the longitudinal axis of the vehicle facing forward, the axis Y represents the transverse axis aligned from left to right. The axes X, Y are assumed to be horizontal, and the axis Z is considered to be vertical and from below to assumed above.

Positioning and fixing the mechanism 1 on the body of the vehicle done by means of three pairs 21 . 22 . 23 complementary fasteners.

It will now be more accurate on the 1 to 4 Referenced.

The first couple 21 on the one hand has a pin 31 with a free end with a substantially hemispherical shape, that of the rod 9 protruding at one end of the latter (left end) substantially in the extension of the main direction of the rod.

The pin 31 has on the side of the free end a first cylindrical portion 31A and a cylindrical intermediate section 31B with a smaller cross section.

How on 2 more visible, shows the first pair 21 on the other hand, a second fastening element, which consists of a plate 32 that exists with the wearer 2 is firmly connected, this plate having a circular opening 35 is provided, the to the end section 31A is complementary. The section 31A can therefore be adjusted in the opening 35 put.

The plate 32 is also with a border 37 formed, located on the periphery of the opening 35 so that it has a flat support part for the pin 31 forms.

If the pin 31 in the opening 35 as in 1 is shown inserted, the pin extends 31 along the transverse axis Y, and the two fasteners 31 . 32 define a spigot connection, the plate 32 a bearing of the mechanism 1 forms on the vehicle body. This connection ensures freedom of rotation of the mechanism about the axis Y and allows sliding along the axis Y of the pin with respect to the plate 32 ,

It should be noted that the second element of the first pair 21 with a collar 39 is provided firmly with the pin 31 connected to the base of this latter and provided to engage the pin in the opening 35 Restrict along the Y axis.

On 2 you can see that the pin 31 and the collar 39 For example, are formed from one piece, which on a cylindrical end projection 40 of the arm 9 has shrunk. Preferably, this part is the pin 31 and the collar 39 forms, an elastomeric sleeve, for example made of rubber. This sleeve is intended to be pressurized while inserting the section 31A in the opening 35 easy to deform and therefore a retention by friction of the corresponding end of the mechanism in engagement with the carrier 2 sure.

Now it will be more accurate on the 1 and 3 Referenced.

The second pair 22 on the one hand has a pin 41 analogous to the pin 31 on, essentially aligned with the same axis and opposite, at the other end of the transverse arm 9 (right end). The pin 41 forms the first fastening element of the second pair 22 ,

The second pair 22 on the other hand has a second fastening element in the form of a plate 42 on that stuck with the carrier 3 is connected, provided with a circular opening 45 for picking up the pin 41 which is complementary to this latter. The circular opening 45 has essentially the axis Y, so that when the pin 41 in the circular opening 45 as in 1 is shown inserted, the second pair of fasteners 22 defines a pin connection. The plate 42 Forms a support bearing of one end of the arm 9 on the vehicle body with one degree of freedom in rotation about the transverse axis Y.

Analogous to what's above for the first pair of fasteners 21 is described and how on 3 pictured is the plate 42 with a border 47 formed, located at the periphery of the opening 45 extends such that it has a peripheral bearing surface for the pin 41 which is larger than the one of the thickness of the plate 42 is defined.

It should be noted that the first fastener of the second pair 22 analogous to what for the first pair 21 was described with a collar 49 is provided at the base of the pin 41 is designed to insert this latter in the opening 45 limit.

The pin is made in one piece with the collar 49 wherein this part is a sleeve which is on an end projection 50 shrunk down the mechanism.

The pin 41 is between his free end and the collar 49 with thorns 41A provided, which are distributed elastically deformable on a circumference. These mandrels define resilient latching means in axial engagement with the rim 47 the opening 45 can interact. The spines 41A therefore form stop means, which are pulling out the pin 41 out of the opening 45 oppose after mutual insertion.

From the above it is clear that the first 21 and the second 22 Pair of fasteners defined connections to the mechanism 1 provide freedom of rotation and freedom of movement from the collar 39 . 49 along the common axis Y of the bearings is restricted in each of the two directions.

The third pair of fasteners 23 has a first element 51 on, stuck with the mechanism 1 connected, and a second element 52 ( 2 ), firmly with the carrier 4 connected is.

How out 4 can be seen, is the second element 52 essentially from a cylindrical shaft 54 formed perpendicular to the top of the carrier 4 protrudes, and from a log in pointed conical shape at the free end of the shaft. The log 56 is with an approach 57 at the level of connection with the shaft 54 Mistake.

The first fastening element 51 consists essentially of a recording of elastomeric material 61 that stuck with the plate 5 connected, which is a complementary reception of the pointed cone-shaped block 56 and a deformable collar 63 has, which is formed at the entrance of the receptacle. This collar 63 is intended to start with the approach 57 of the pad to axially lock the latter after insertion. The deformable collar 63 and the approach 57 define complementary resilient snap-fit means that operate substantially along the Z axis.

The recording 61 is outside with a circumferential groove 65 at the level of the collar 63 Mistake.

The fastener 51 is also with a clamp 67 provided in the groove 65 can engage and can be tightened to the mutual locking after the engagement of the two fasteners 51 . 52 to block.

The clamp 67 and their operation will be described in more detail below with reference to FIGS 9 to 12 described.

The 1 to 4 that have already been described show the mechanism 1 completely mounted on the body part. With reference to the 5 to 8th Now, the most important intermediate steps of the method will be described, which allows the mounting and fixing of the windshield wiper mechanism on the body part.

A first step of the assembly process is to insert the pin 31 in the opening 35 until you get past the section 31B in the opening comes such that a game between the pin 31 and the edge 37 that is a knocking out of the pin 31 with respect to the Y-axis (see 6 ).

The pin 41 is therefore from the opening 45 spaced, and knocking out the mechanism 1 in relation to the carrier 3 that of the game between the pin 31 and the respective opening 35 allowed, allows the pin 41 the opening 45 essentially facing coaxially (see 7 ).

During this first step, the fasteners remain 51 . 52 of the third pair 23 free from each other because they are shifted along the Y and Z axes. The position of the mechanism obtained after this first assembly step is in 5 shown.

After the coaxial insertion of the pin 31 in the corresponding opening 35 becomes the pin 41 coaxial with the opening 45 by moving the mechanism 1 in the opposite direction, also inserted along the Y axis. The axial insertion of the pin 41 will until the snaps of the spines 41A on the edge of the opening 45 continued.

After this intervention and snapping and as in 3 shown, the first inserted pin returns 31 in such an axial position that the section 31A with the larger diameter through the opening 35 extends and the edge 37 touched in close contact.

8th illustrates the position of the mechanism after this intermediate assembly step.

In a later assembly step you add the two fasteners 51 . 52 of the pair, the connection by snapping 23 forms, together, by the mechanism 1 pivots about the axis of rotation Y, that of the journal connections 21 and 22 is defined.

As soon as the latching has taken place, the clamp becomes 67 in the throat 65 attached to block the locking as on 4 shown. The mechanism is therefore located in the 1 illustrated configuration.

How on the 9 and 10 shown, the tension clamp 67 two half clamps 67A and 67B in semicircular form.

The first half clamp 67A has an abutment surface at each of its two opposite ends 80 and a straightforward tongue 81 on that from the side 80 protrudes. The second half clamp 67B points at its two opposite ends and correspondingly two ears 82 on. Every ear 82 is provided with a window into which the respective tongue 81 is inserted, and with a stop page 83 that the side 80 equivalent.

The tongue 81 extends along a direction tangent to the circle defined by the clamp. It is with an elastic locking lance 84 provided that the locking organ of the ear 82 in the clamping position of the two half clamps 67A and 67B forms. On the side of her free end is the tongue 81 with a return 85 provided with an axial stop stop for the ear 82 in the direction of separating the two half clamps 67A and 67B forms.

In a middle region is every half-bell 67A . 67B with a control knob 90 provided projecting in a direction orthogonal to the general plane of the circular clamp direction.

In the preassembled position of the clamp 67 as they are in 9 is shown, the two half clamps 67A . 67B by the intervention of the ears 82 in the notches, between the recesses 85 and the lance 84 are formed, held firmly in a waiting position.

In the up 10 shown clamping configuration are the ears 82 the second half clamp 67B playfully between the two free ends of the lances 84 and the pages 80 blocked on which the pages 83 come to rest. The lances 84 are designed such that the clamp can be returned to its relaxed configuration only with at least partial destruction of the clamp. Clamping the clamp 67 is therefore not reversible.

Preferably the clamp is made of plastic.

How on the 11 and 12 illustrates blocking the mutual locking of the fasteners 51 . 52 after the elastic engagement by means of the clamp 67 ensured by placing the latter in the groove 65 used and tightened.

To do this, the operator threads the clamp 67 in its pre-assembled position on the picture 61 up to the level of the groove 65 ( 11 ) and clamps the clamp 67 by clicking on the control buttons 90 suppressed. The ears 82 be along the direction of the two parallel tongues 81 guided and locked in the notches, from the free end of the lances 84 and the pages 80 be formed, in such a way that the clamp on their 10 achieved tense configuration achieved.

The two half clamps 67A . 67B in the throat 65 under the collar 63 are curious, restrict the deformation of the recording 61 at the level of the collar 63 Therefore, and prohibit the retraction of the pointed cone-shaped block 56 from his recording ( 12 ).

It is clear that the clamp 67 manually by the operator without the aid of a specific clamping tool can be clamped.

Claims (10)

Positioning and fastening device of a windshield wiper mechanism on a body part of a motor vehicle, the at least three pairs of fasteners ( 21 . 22 . 23 ), each having a fastener ( 31 . 41 . 51 ) fixed to the windshield wiper mechanism ( 1 ), and a second fastening element ( 32 . 42 . 52 ) which is fixedly connected to the body part, in which the first and the second pair ( 21 . 22 ) form coaxial pivotal connections corresponding to the mechanism ( 1 ) allow a freedom of rotation according to a same axis (Y), and wherein the third pair ( 23 ) forms a connection with elastic engagement by rotation about the axis (Y), characterized in that the first and the second pair ( 21 . 22 ) are designed to by axial insertion of the first fastener ( 31 . 41 ) in the second fastening element ( 32 . 42 ) be successively and joined together in opposite directions. Apparatus according to claim 1, characterized in that the first fastening element of the two pairs, a swivel ( 21 . 22 ), a partially cylindrical pin ( 31 . 41 ) associated with the windshield wiper mechanism ( 1 ) at a free end of an arm ( 9 ) the latter is firmly connected, while the second fastening element of these two pairs ( 21 . 22 ) an opening ( 35 . 45 ), which correspond to the respective pin ( 31 . 41 ) is complementary, in a respective mounting plate ( 32 . 42 ), which is fixedly connected to the vehicle body part and designed such that it can be inserted or removed from the pin ( 31 . 41 ) radially prevented. Apparatus according to claim 2, characterized in that the pin ( 31 ) of a first ( 21 ) of the two fastener pairs which form the swivel, a free cylindrical end portion ( 31A ), which narrows slightly into the corresponding opening ( 35 ) and an intermediate section ( 31B ) with a smaller cross-section, such that an angular deflection of the pin ( 31 ) with respect to its axis (Y), when the intermediate section ( 31B ) into the corresponding opening ( 35 ) is inserted. Apparatus according to claim 2 or 3, characterized in that the pin ( 41 ) of the second ( 22 ) of the two pairs forming the swivel, elastic latching means ( 41A ), which function axially, forming stop means which are responsible for removing the pin ( 41 ) from the corresponding opening ( 45 ) resist. Device according to claims 3 and 4 taken together, characterized in that the pins ( 31 . 41 ) are such that when the pin ( 41 ) of the second pair ( 22 ) in the of the stop means ( 41A ) defined stop position, the pin ( 31 ) of the first pair ( 21 ) into the corresponding opening ( 35 ) about its intermediate section ( 31A ) is inserted. Device according to one of claims 1 to 5, characterized in that the second fastening element ( 52 ) of the pair ( 23 ), which makes the connection by latching, a block ( 56 ) in a pointed cone shape with an approach ( 57 ) is provided and projects outwardly from the body part. Apparatus according to claim 6, characterized in that the first fastening element ( 51 ) of the pair ( 23 ), which forms the connection by latching, a recording of elastomeric material ( 61 ) fixed to the mechanism ( 1 ), which has a complementary reception of the block ( 56 ) and a deformable neck ( 63 ), which is intended to deal with the approach ( 57 ) in such a way that the block ( 56 ) is blocked in the recording. Assembly method of a windscreen wiper mechanism on a body part of a motor vehicle, wherein the mechanism ( 1 ) and the body part are provided with a positioning and fastening device according to one of claims 1 to 7, wherein in the method the following steps are carried out: - assembling the first ( 21 ) the swivel-forming pair; - assembling the second ( 22 ) the swivel-forming pair; and - assembling the pair ( 23 ), which connects by latching, by the mechanism ( 1 ) can pivot about the rotation axis (Y) defined by the swivels. A method according to claim 8, wherein the positioning and fastening device further corresponds to claim 5, characterized in that for assembling the pairs forming the swivel ( 21 . 22 ): - the pin ( 31 ) of the first pair ( 21 ) into the corresponding opening ( 35 ) and then continue the axial insertion until the section of smaller cross-section ( 31B ) in the opening ( 35 ) is used; - the pin ( 41 ) of the second pair ( 22 ) opposite the corresponding opening ( 45 ) and there axially until the engagement of the corresponding elastic latching means ( 41A ) such that the pin ( 31 ) of the first pair ( 21 ) just with the corresponding opening ( 35 ) at the level of the end section ( 31A ) cooperates. Motor vehicle with a body part and a windshield wiper mechanism ( 1 ) which is mounted on the body part, characterized in that it comprises a positioning and fastening device according to one of claims 1 to 7, on the basis of which the windshield wiper mechanism ( 1 ) is attached to the body part.